Removes all mentions of return . where they would be unnecessary (#25142)

* Removes all mentions of `return .`

* I can do this all day

* Arthri review

* Update code/__HELPERS/sanitize_values.dm

Co-authored-by: Burzah <116982774+Burzah@users.noreply.github.com>

* Update code/__HELPERS/sanitize_values.dm

Co-authored-by: Burzah <116982774+Burzah@users.noreply.github.com>

---------

Co-authored-by: Burzah <116982774+Burzah@users.noreply.github.com>

code/modules/mob/living/carbon/human/human_emote.dm

@@ -12,7 +12,7 @@
 	var/mob/living/carbon/human/human_user = user
 
 	if(!species_custom_messages || (human_user.mind?.miming && !species_custom_mime_messages))
-		return .
+		return
 
 	var/custom_message
 	if(user.mind?.miming)

code/modules/mob/living/carbon/human/species/_species.dm

@@ -317,7 +317,7 @@
 			ADD_SLOWDOWN(H.r_hand.slowdown)
 
 	if(ignoreslow)
-		return . // Only malusses after here
+		return // Only malusses after here
 
 	if(H.dna.species.spec_movement_delay()) //Species overrides for slowdown due to feet/legs
 		. += 2 * H.stance_damage //damaged/missing feet or legs is slow

code/modules/mob/living/living_emote.dm

@@ -11,7 +11,6 @@
 	. = ..()
 	if(user.mind?.miming)
 		return FALSE  // shh
-	return .
 
 /datum/emote/living/blush
 	key = "blush"

code/modules/mob/living/login.dm

@@ -20,5 +20,3 @@
 
 	//Should update regardless of if we can ventcrawl, since we can end up in pipes in other ways.
 	update_pipe_vision(loc)
-
-	return .

code/modules/mob/living/simple_animal/friendly/snake.dm

@@ -8,7 +8,6 @@
 		var/mob/living/L = target
 		if(L.reagents && !poison_per_bite == 0)
 			L.reagents.add_reagent(poison_type, poison_per_bite)
-		return .
 
 /mob/living/simple_animal/hostile/retaliate/poison/snake
 	name = "snake"

code/modules/mob/mob_misc_procs.dm

@@ -74,7 +74,7 @@
 /mob/living/carbon/human/get_screen_colour() //Fetch the colour matrix from wherever (e.g. eyes) so it can be compared to client.color.
 	. = ..()
 	if(.)
-		return .
+		return
 
 	var/obj/item/clothing/glasses/worn_glasses = glasses
 	var/obj/item/organ/internal/eyes/eyes = get_int_organ(/obj/item/organ/internal/eyes)